The Pattern of Juvenile Idiopathic Arthritis in a Single Tertiary Center in Saudi Arabia

Table 2

General characteristics of JIA patients.

JIA subtype	Number of cases (%)	Gender		Age of onset (yr)		Duration of follow-up (yr)
		Male (%)	Female (%)	Range	Mean (SD)	Range	Mean (SD)
Oligoarticular	23 (28.04)	10 (43.47)	13 (56.52)	1–12.3	4.78 ± 2.91	0.7–8	2.68 ± 1.86
Polyarticular RF-positive	4 (4.87)	0	4 (100)	10–14.5	12.3 ± 2.78	0.5–5	2.2 ± 1.964
Polyarticular RF-negative	20 (24.39)	6 (30)	14 (70)	2.5–12.4	8.12 ± 3.47	0.6–5.8	2.85 ± 1.376
Systemic	30 (36.5)	13 (43.33)	17 (56.66)	0.7–12.6	7.25 ± 3.47	0.5–6.8	2.37 ± 1.61
Psoriatic	4 (4.87)	1 (25)	3 (75)	4.7–12.2	8.47 ± 3.09	1.3–6.6	3.97 ± 2.17
ERA	1 (1.21)	1 (100)	0	—	—	—	4.8
Total	82 (100)	31 (37.8)	51 (62.2)	0.7–14.5	7.11 ± 3.65	0.5–8	2.67 ± 1.68

ERA: enthesitis-related arthritis.